ncp5623a ON Semiconductor, ncp5623a Datasheet
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ncp5623a
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ncp5623a Summary of contents
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... NCP5623A Triple Output I2C Controlled RGB LED Driver The NCP5623A mixed analog circuit is a triple output LED driver dedicated to the RGB illumination or backlight LCD display. The built−in DC/DC converter is based on a high efficient charge pump structure with operating mode 1x and 2x. It provides a 94% peak efficiency ...
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... Vbat AGND 6 DIGITAL CONTROL SDA 7 SCL 9 Vbat R1 ANALOG GND 8 FUNCTIONS 62 k Figure 2. Simplified Block Diagram C3 220 NCP5623A CHARGE PUMP DC/DC CONVERTER OVER VOLTAGE Vbat LED3 GND LED2 PWM LED#1 GND LED1 PWM LED#2 GND PWM LED#3 CURRENT MIRRORS http://onsemi.com 2 C2 1.0 mF/10 V ...
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PIN ASSIGNMENT PIN Name Type 1 C1P POWER One side of the external charge pump capacitor (C pin 12 (Note 1). 2 GND POWER This pin is the GROUND signal for the analog and digital blocks and must be connected ...
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MAXIMUM RATINGS Symbol V Power Supply (see Figure 3) BAT Vout Output Power Supply SDA, SCL, Digital Input Voltage SHDI2C Digital Input Current ESD Human Body Model 1500 100 pF (Note 3) Machine Model LLGA12 ...
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POWER SUPPLY SECTION: (Typical values are referenced +25°C, Min & Max values are referenced −40°C to +85°C ambient temperature, unless otherwise A noted), operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted. Pin Symbol ...
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ANALOG SECTION: (Typical values are referenced +25°C, Min & Max values are referenced −40°C to +85°C ambient temperature, unless otherwise A noted), operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted. Pin Symbol 8 ...
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... Note forces ILED to zero with and yields the same LED current LOAD CONNECTION The primary function of the NCP5623A is to control three LED arranged in the RGB color structure (reference out OSRAM LATB G66x). The brightness of each LED is independently controlled by a set of dedicated PWM structure embedded into the silicon chip ...
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... RLED2 RLED1 RLED0 *Note: according to the I2C specifications, the physical address is based on 7 bits out of the SDA byte, the 8 Since the NCP5623A is a receiver only, the R/W command is 0 and the hexadecimal byte send by the MCU is %0111 0000 = $70 B[7:5] : Internal Register Selection ...
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... REF The gradual dimming sequence must be set up before a new output current data byte is send to the NCP5623A . At this point, the brightness sequence takes place when the new data byte is acknowledged by the internal I2C decoder. Since the six registers are loaded on independent byte flow ...
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... LED is set depending upon the PWM modulation value 100 Figure 5. NCP5623A Typical Efficiency as a Function of the Vf NOTE: Efficiency is measured with the three PWM equal to 100 Step − PWM = $1F ³ current being the one defined by the ILED value. ...
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... V GND GND C1 220 RGB C1P C1N 10 Vout LED3 LED2 LED1 2 GND LRTB−G6T D4 BACK LIGHT U1 GND NCP5623A D5 http://onsemi.com mF/10 V GND NTJD1155L NTJD1155L ...
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... PAD AS WELL AS THE TERMINALS. MILLIMETERS DIM MIN MAX A 0.50 0.60 A1 0.00 0.05 b 0.15 0.25 D 2.00 BSC D2 0.80 1.00 E 2.00 BSC E2 0.55 0.65 e 0.40 BSC K 0.25 −−− L 0.30 0.50 L1 0.40 0.60 SOLDERING FOOTPRINT* 2.30 12X 0.23 1 0.40 PITCH 0.93 11X 0.56 0.63 DIMENSIONS: MILLIMETERS ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP5623A/D 0.91 ...